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<pre><span class="sourceLineNo">001</span>package org.teapot.db.orm.util.keybreakmany;<a name="line.1"></a>
<span class="sourceLineNo">002</span><a name="line.2"></a>
<span class="sourceLineNo">003</span>import org.teapot.db.orm.IKeyValue;<a name="line.3"></a>
<span class="sourceLineNo">004</span>import org.teapot.db.orm.util.keybreak.DefaultKbInstance;<a name="line.4"></a>
<span class="sourceLineNo">005</span>import org.teapot.db.orm.util.UModel;<a name="line.5"></a>
<span class="sourceLineNo">006</span><a name="line.6"></a>
<span class="sourceLineNo">007</span>import java.util.ArrayList;<a name="line.7"></a>
<span class="sourceLineNo">008</span>import java.util.Collections;<a name="line.8"></a>
<span class="sourceLineNo">009</span>import java.util.List;<a name="line.9"></a>
<span class="sourceLineNo">010</span><a name="line.10"></a>
<span class="sourceLineNo">011</span>public class DefaultKbmInstance extends DefaultKbInstance {<a name="line.11"></a>
<span class="sourceLineNo">012</span>  public &lt;T extends IKeyValue&gt; Object runBreak(List&lt;List&lt;T&gt;&gt; transactions,<a name="line.12"></a>
<span class="sourceLineNo">013</span>      IMergeBreakProcs procs, Object param) {<a name="line.13"></a>
<span class="sourceLineNo">014</span>    return mergeBreak( transactions, procs, param, false);<a name="line.14"></a>
<span class="sourceLineNo">015</span>  }<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>  private &lt;T extends IKeyValue&gt; Object mergeBreak(List&lt;List&lt;T&gt;&gt; transactions,<a name="line.17"></a>
<span class="sourceLineNo">018</span>      IMergeBreakProcs procs, Object param, boolean typeCheck) {<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>    int total = transactions.size() + 1;<a name="line.20"></a>
<span class="sourceLineNo">021</span>    ((IKeyBreakMany) procs).setTotal(total);<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>    // merge a set of collections into one<a name="line.23"></a>
<span class="sourceLineNo">024</span>    List&lt;IKeyValue&gt; transaction = mergeTransactions(transactions);<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>    System.out.println(this.getClass().getName() + "----- getBreakKeys");<a name="line.26"></a>
<span class="sourceLineNo">027</span>    String[] breakKeys = ((IKeyBreakMany) procs).getBreakKeys();<a name="line.27"></a>
<span class="sourceLineNo">028</span><a name="line.28"></a>
<span class="sourceLineNo">029</span>    // sort the merged collection by break keys and the order of collection<a name="line.29"></a>
<span class="sourceLineNo">030</span>    sort(transaction, breakKeys, total, typeCheck);<a name="line.30"></a>
<span class="sourceLineNo">031</span><a name="line.31"></a>
<span class="sourceLineNo">032</span>    List&lt;String&gt; reversedKeys = UModel.toList(breakKeys);<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>    /*<a name="line.34"></a>
<span class="sourceLineNo">035</span>     * Initialization doContinue methods in procs object<a name="line.35"></a>
<span class="sourceLineNo">036</span>     */<a name="line.36"></a>
<span class="sourceLineNo">037</span>    ((MergeBreakProcs)procs).initContinueMethods();<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span>    /*<a name="line.39"></a>
<span class="sourceLineNo">040</span>     * Storing breakKeys into procedure object to handle break methods,<a name="line.40"></a>
<span class="sourceLineNo">041</span>     * whose suffix is name(of key) not level (of break)<a name="line.41"></a>
<span class="sourceLineNo">042</span>     */<a name="line.42"></a>
<span class="sourceLineNo">043</span>    ((MergeBreakProcs)procs).setKeys(reversedKeys);<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>    /*<a name="line.45"></a>
<span class="sourceLineNo">046</span>     * For safety, setParam/Result() is declared as protected not public.<a name="line.46"></a>
<span class="sourceLineNo">047</span>     * Therefore casting proc object to the absract class not interface,<a name="line.47"></a>
<span class="sourceLineNo">048</span>     * which requires public methods in it.<a name="line.48"></a>
<span class="sourceLineNo">049</span>     */<a name="line.49"></a>
<span class="sourceLineNo">050</span>    ((MergeBreakProcs)procs).setParam(param);<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>//    super.runBreak(transaction, breakKeys, procs );<a name="line.52"></a>
<span class="sourceLineNo">053</span>    super.runBreak(transaction, procs, param);<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>    // Finishing control break procedure. (Finall invoke of callback methods)<a name="line.55"></a>
<span class="sourceLineNo">056</span>    return procs.fin();<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>  }<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>  /**<a name="line.60"></a>
<span class="sourceLineNo">061</span>   * 把参与Break处理的数据进行打包.<a name="line.61"></a>
<span class="sourceLineNo">062</span>   * @param transactions 参与Break处理的数据<a name="line.62"></a>
<span class="sourceLineNo">063</span>   * @return 打包后的数据<a name="line.63"></a>
<span class="sourceLineNo">064</span>   */<a name="line.64"></a>
<span class="sourceLineNo">065</span>  private &lt;T extends IKeyValue&gt; List&lt;IKeyValue&gt; mergeTransactions(List&lt;List&lt;T&gt;&gt; transactions) {<a name="line.65"></a>
<span class="sourceLineNo">066</span>    List&lt;IKeyValue&gt; merged = new ArrayList&lt;IKeyValue&gt;();<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span>    for (int index = 0; index &lt; transactions.size(); index ++) {<a name="line.68"></a>
<span class="sourceLineNo">069</span>      List&lt;T&gt; tran = transactions.get(index);<a name="line.69"></a>
<span class="sourceLineNo">070</span>      for (int i = 0; i &lt; tran.size(); i++) {<a name="line.70"></a>
<span class="sourceLineNo">071</span>        IKeyValue naked = tran.get(i);<a name="line.71"></a>
<span class="sourceLineNo">072</span>        // Wrapping an element in list by Wrapp class with index info<a name="line.72"></a>
<span class="sourceLineNo">073</span>        Wrapper wrap = new Wrapper(index, naked);<a name="line.73"></a>
<span class="sourceLineNo">074</span>        // Collection all elments in multiple lists into one<a name="line.74"></a>
<span class="sourceLineNo">075</span>        merged.add(wrap);<a name="line.75"></a>
<span class="sourceLineNo">076</span>      }<a name="line.76"></a>
<span class="sourceLineNo">077</span>    }<a name="line.77"></a>
<span class="sourceLineNo">078</span>    return merged;<a name="line.78"></a>
<span class="sourceLineNo">079</span>  }<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span>  private void sort(List&lt;IKeyValue&gt; merged, String[] breakKeys, int total, boolean typeCheck) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>    // Initialize a comparator specialized to wrapping object<a name="line.82"></a>
<span class="sourceLineNo">083</span>    WrappingComparator&lt;IKeyValue&gt; comp;<a name="line.83"></a>
<span class="sourceLineNo">084</span>    if ( typeCheck ) {<a name="line.84"></a>
<span class="sourceLineNo">085</span>      comp = new WrappingTypeCheckComparator&lt;IKeyValue&gt;( breakKeys );<a name="line.85"></a>
<span class="sourceLineNo">086</span>    } else {<a name="line.86"></a>
<span class="sourceLineNo">087</span>      comp = new WrappingComparator&lt;IKeyValue&gt;(breakKeys, total);<a name="line.87"></a>
<span class="sourceLineNo">088</span>    }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span>    // execute sort with java.util.Collectons<a name="line.90"></a>
<span class="sourceLineNo">091</span>    Collections.sort(merged, comp);<a name="line.91"></a>
<span class="sourceLineNo">092</span>  }<a name="line.92"></a>
<span class="sourceLineNo">093</span><a name="line.93"></a>
<span class="sourceLineNo">094</span>  /**<a name="line.94"></a>
<span class="sourceLineNo">095</span>   * To wrap elements in Vector to handle multiple doContine[0,1,...n] methods.<a name="line.95"></a>
<span class="sourceLineNo">096</span>   *  Implement IObjectModel interface mulit-type comparation<a name="line.96"></a>
<span class="sourceLineNo">097</span>   */<a name="line.97"></a>
<span class="sourceLineNo">098</span>  private class Wrapper implements IWrapper, IKeyValue {<a name="line.98"></a>
<span class="sourceLineNo">099</span>    private int index;<a name="line.99"></a>
<span class="sourceLineNo">100</span>    private IKeyValue naked;<a name="line.100"></a>
<span class="sourceLineNo">101</span>//    private boolean isWarned = false;<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
<span class="sourceLineNo">103</span>    private Wrapper(int index, IKeyValue naked) {<a name="line.103"></a>
<span class="sourceLineNo">104</span>      this.index = index;<a name="line.104"></a>
<span class="sourceLineNo">105</span>      this.naked = naked;<a name="line.105"></a>
<span class="sourceLineNo">106</span>    }<a name="line.106"></a>
<span class="sourceLineNo">107</span>    // ************* Implementing IWrapper interface ****************** //<a name="line.107"></a>
<span class="sourceLineNo">108</span><a name="line.108"></a>
<span class="sourceLineNo">109</span>    public int getIndex() {<a name="line.109"></a>
<span class="sourceLineNo">110</span>      return this.index;<a name="line.110"></a>
<span class="sourceLineNo">111</span>    }<a name="line.111"></a>
<span class="sourceLineNo">112</span><a name="line.112"></a>
<span class="sourceLineNo">113</span>    public IKeyValue getNaked() {<a name="line.113"></a>
<span class="sourceLineNo">114</span>      return this.naked;<a name="line.114"></a>
<span class="sourceLineNo">115</span>    }<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span>    public Object get(String key) {<a name="line.117"></a>
<span class="sourceLineNo">118</span>      try {<a name="line.118"></a>
<span class="sourceLineNo">119</span>        IKeyValue om = (IKeyValue)getNaked();<a name="line.119"></a>
<span class="sourceLineNo">120</span>        return om.get( key );<a name="line.120"></a>
<span class="sourceLineNo">121</span>      } catch ( ClassCastException cce ) {<a name="line.121"></a>
<span class="sourceLineNo">122</span>//        if ( !this.isWarned ) {<a name="line.122"></a>
<span class="sourceLineNo">123</span>//          System.out.println("[MergeBreakFrame][Warning] Implement IObjectModel interface at "<a name="line.123"></a>
<span class="sourceLineNo">124</span>//                  + getNaked().getClass().getName() );<a name="line.124"></a>
<span class="sourceLineNo">125</span>//        }<a name="line.125"></a>
<span class="sourceLineNo">126</span>//        this.isWarned = true;<a name="line.126"></a>
<span class="sourceLineNo">127</span>//        IKeyValue om = (IKeyValue) getNaked();<a name="line.127"></a>
<span class="sourceLineNo">128</span>//        return om.getSortKey( key );<a name="line.128"></a>
<span class="sourceLineNo">129</span>      }<a name="line.129"></a>
<span class="sourceLineNo">130</span>      return null;<a name="line.130"></a>
<span class="sourceLineNo">131</span>    }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span>    public IKeyValue set(String key, Object value) {<a name="line.133"></a>
<span class="sourceLineNo">134</span>      return this;<a name="line.134"></a>
<span class="sourceLineNo">135</span>    }<a name="line.135"></a>
<span class="sourceLineNo">136</span>  }<a name="line.136"></a>
<span class="sourceLineNo">137</span>}<a name="line.137"></a>




























































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